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Mathematics 12 Online
OpenStudy (anonymous):

How do I solve the absolute value equation 4|3x=5|+2=10 ?

hartnn (hartnn):

subtract 2 from both sides

OpenStudy (anonymous):

4|3x+5|=8 ? Do I multiply by 4?

OpenStudy (anonymous):

or subtract it from both sides?

OpenStudy (anonymous):

If on the left side you have addition, you need to subtract. When you have multiplication, what would you need to do?

hartnn (hartnn):

so u divide by 4 on both sides.

OpenStudy (anonymous):

how do I divide 3x+5 by 4?

OpenStudy (anonymous):

You have 4|3x+5|=8. When you divide both sides by 4, what happens to the 4 on the left side. The one infront of the abs value.

OpenStudy (anonymous):

It cancels out? But still

OpenStudy (anonymous):

It does, you are correct. So now you are left with\[\left| 3x+5 \right|=2\]Now do you know how to solve this?

OpenStudy (anonymous):

Ohhh yes! thank you!

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